GENERATING AN ESTIMATE FOR PATIENT RADIATION DOSIS FOLLOWING MEDICAL IMAGINATION SCANS

摘要

The invention describes a non-transitory computer-readable storage medium storing one or more application programs, which, when executed by a processor, performs an operation for providing a plurality of medical imaging providers with estimates of radiation dose absorbed by individuals receiving imaging scans, the operation comprising:receiving, from one of the medical imaging providers, a request for an estimate of radiation dose absorbed by an individual patient in receiving an imaging scan, wherein the request includes (i) a set of parameters describing the imaging scan and an image scanning apparatus being used to perform the imaging scan and (ii) one of a deformed mathematical phantom based on a body morphology of the individual patient and a transformation used to deform an initial mathematical phantom into the deformed mathematical phantom wherein the deformed mathematical phantom is determined via a method including:selecting an initial mathematical phantom for the individual patient receiving an imaging scan, the selecting being based on an age and a gender of the individual patient;receiving one or more scout images of the individual patient;selecting from images obtained from multiple individuals a reference set of localizer images having a body geometry, size and positioning that closely matches the initial mathematical phantom;determining a transformation between at least one of the localizer images and at least one of the scout images of the individual patient; anddeforming the initial mathematical phantom based on the transformation whereby the deformed mathematical phantom resulting from the transformation better matches a size, a shape and organ positions of the individual patient;accessing a library comprising a plurality of previously completed simulations corresponding to one or more individuals, each of the previously completed simulations having information therein comprising a previous set of parameters describing a previous imaging scan and an image scanning apparatus used to perform the previous imaging scan, a previous estimate of radiation dose absorbed by one of the one or more individuals in receiving the previous imaging scan and a previous deformed phantom used in calculating the previous estimate of radiation dose associated therewith;evaluating the plurality of previously completed simulations within the library by comparing the information therein with the set of parameters and the deformed mathematical phantom obtained as a result of the request;upon identifying within the library, based on the evaluation, the previously completed simulations having the information therein that matches within a specified tolerance measure the set of parameters and the deformed mathematical phantom obtained as a result of the request, using the identified previously completed simulations to determine the estimate of radiation dose absorbed by the individual patient in receiving the imaging scan; andreturning, to the medical imaging provider, the estimate of radiation dose absorbed by the individual patient.